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Finding the Fourth Proportional to 454,454.60, 680,904.30 and 288,048.20

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Solution

The fourth proportional to 454,454.60, 680,904.30 and 288,048.20 is: 431,579.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,454.60 : 680,904.30 = 288,048.20 : x
  2. Step 2: Convert to fraction form
    454,454.60/680,904.30 = 288,048.20/x
  3. Step 3: Cross multiply
    454,454.60x = 680,904.30 × 288,048.20
  4. Step 4: Simplify right side
    454,454.60x = 196,133,257,987.26
  5. Step 5: Solve for x
    x = 196,133,257,987.26/454,454.60
  6. Step 6: Final answer
    x = 431,579.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.